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A Planar Quasi Yagi-Uda Antenna Designed For Liquid Crystal Based End-Fire Phased Arrays

Wang, D. ; Nickel, M. ; Schumacher, P. ; Polat, E. ; Tesmer, H. ; Jakoby, R. ; Maune, H. (2021):
A Planar Quasi Yagi-Uda Antenna Designed For Liquid Crystal Based End-Fire Phased Arrays.
pp. 164-167, IEEE, 2021 IEEE Radio and Wireless Symposium (RWS), San Diego, USA, 17.-22.01.2021, e-ISSN 2164-2974, ISBN 978-1-7281-8062-5,
DOI: 10.1109/RWS50353.2021.9360363,
[Conference or Workshop Item]

Abstract

This paper presents a planar quasi Yagi-Uda antenna based on liquid crystal (LC) technology for millimeter-wave applications. The antenna is built on the inner surfaces of two parallel glass substrates, with thin layer of LC filled in the feed part. It is fed by a two-step coaxial-to-microstrip transition. The antenna achieves a measured bandwidth of 31 with a VSWR <; 2, better than 15 dB front-to-back ratio, better than -13 dB cross polarization and 9.0 dBi gain at 28 GHz. Measured scattering parameters, as well as far field patterns agree very well with the simulation results. The planar quasi Yagi-Uda antenna is compatible with existing planar reconfigurable feed network based on LC technology, complementary to the broadside radiating array.

Item Type: Conference or Workshop Item
Erschienen: 2021
Creators: Wang, D. ; Nickel, M. ; Schumacher, P. ; Polat, E. ; Tesmer, H. ; Jakoby, R. ; Maune, H.
Title: A Planar Quasi Yagi-Uda Antenna Designed For Liquid Crystal Based End-Fire Phased Arrays
Language: English
Abstract:

This paper presents a planar quasi Yagi-Uda antenna based on liquid crystal (LC) technology for millimeter-wave applications. The antenna is built on the inner surfaces of two parallel glass substrates, with thin layer of LC filled in the feed part. It is fed by a two-step coaxial-to-microstrip transition. The antenna achieves a measured bandwidth of 31 with a VSWR <; 2, better than 15 dB front-to-back ratio, better than -13 dB cross polarization and 9.0 dBi gain at 28 GHz. Measured scattering parameters, as well as far field patterns agree very well with the simulation results. The planar quasi Yagi-Uda antenna is compatible with existing planar reconfigurable feed network based on LC technology, complementary to the broadside radiating array.

Publisher: IEEE
ISBN: 978-1-7281-8062-5
Uncontrolled Keywords: Phased arrays;Antenna measurements;Microstrip antenna arrays;Yagi-Uda antennas;Antenna feeds;Gain;Antenna arrays;End-fire;planar Yagi-Uda;LC;far field;antenna gain
Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics > Microwave Engineering
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics
Event Title: 2021 IEEE Radio and Wireless Symposium (RWS)
Event Location: San Diego, USA
Event Dates: 17.-22.01.2021
Date Deposited: 01 Nov 2021 11:13
DOI: 10.1109/RWS50353.2021.9360363
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